Casper Weather Forecast

    • 50
    • 79

    Chance Thunderstorms

    • 52
    • 84

    Mostly Sunny

    • 54
    • 87

    Partly Sunny

    • 50
    • 85

    Slight Chance Thunderstorms

    • 51
    • 84

    Slight Chance Thunderstorms

    • 54
    • 88

    Mostly Sunny

Today 15 Aug Natrona County Lower Elevations

Partly cloudy. A chance of Showers with a slight chance of Thunderstorms in the Morning, then Showers likely with a chance of Thunderstorms in the afternoon. Highs in the mid 70s. Northwest Winds around 10 Mph with Gusts up to 20 Mph in the afternoon. Chance of rain 60 percent.

Tonight 15 Aug Natrona County Lower Elevations

Mostly cloudy. Near steady temperature in the upper 50s.

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Casper Temperature Statistics

August Temperature

Casper, Natrona County International Airport (8.1 miles)

  • Lowest 5 August, 2026

    44.7 °F

  • Average August

    73.6 °F

  • Highest 2 August, 2026

    103.6 °F

Climate (2021–2026)

Casper, Natrona County International Airport (8.1 miles)

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  • Average Low 2021–2026

    33.3 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    61.6 °F
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